As many as five people were killed and two were injured in the firing incident that took place in Haryana's Rohtak district on Friday.
The BJP chose to hold the rally in Rohtak, which is considered to be the bastion of veteran Congress leader and former chief minister Bhupinder Singh Hooda.
The victim, who belonged to the Jat community, was 17-year-old when she had eloped with a Dalit boy last year.
Amit Panghal helped his father with the harvesting of wheat and in the process witnessed the "misery of farmers" shattered by unseasonal rains and the lockdown to contain the deadly coronavirus pandemic
A video of the incident shows people snatching Yoga mats from each other even as organising officials try to prevent them from indulging in looting.
Referring to Jammu and Kashmir, Modi said the country and the world have witnessed, in the past 100 days, that 'India is challenging every challenge', whether it is decades old or is of future.
He also averred that a special vehicle brings food for Ram Rahim and that the authorities also cut out portion from newspapers which castigate the jail administration.
The 50-year-old self-styled godman, who boasted of millions of followers, is lodged in Rohtak's Sunaria jail for raping his two disciples.
He also used the red suitcase as a signal to instigate violence.
"Victims were staying in the premises of Dera under the custody of the convict and his act is not less than "custodial rape""
Ram Rahim was convicted of rape by a special CBI court on Friday.
The high court asked the state government to make arrangements for security and safe transport by air of the judicial officer and two staff members.
The Railways said the accumulative figure for cancelled trains on six days, since August 23 till August 28, was at 445.
Tight security arrangements have been put in place in Rohtak.